Irish Trotting and Harness Racing Federation
- Official site includes results, photo page, message board and links.
- http://ithrf.8m.com/

The American Harness Drivers Club, Inc
- Organizing amateur races at major racetracks in New Jersey, USA.
- http://home.comcast.net/~ahdc/ahdc.html

British Harness Racing Club
- Website of the British Harness Racing Club. Information, locations, runners and results for harness racing in the UK
- http://www.bhrc.org.uk

Ontario Sires Stakes (OSS)
- Program that promotes breeding of standardbred horses in Ontario and provides economic incentives to breeders to improve the quality of the Ontario sired horse.
- http://www.ontariosiresstakes.com/

Standardbred and Trotting Horse Association of Great Britain and Ireland
- Open to all lovers of the breed. Includes a list of stallions in the UK, membership details, information about horse registration, newsletter and links.
- http://www.standardbred.org/

Wales & Border Counties Harness Racing
- Offers beginner's guide to the sport, newsletter, track locations, history, breeding information, photos and links.
- http://www.welsh-trotting.co.uk

Alberta Standardbred Horse Association
- Represents the membership in relationships with racing associations, Horse Racing Alberta and the provincial government. Includes membership details and application form, race news and dates, newsletter archive, events and links.
- http://www.asha.ab.ca/

BC Standardbred Association
- Serving the needs of horsemen and breeders since 1965. Includes the current year's stallion directory and yearling sales catalogue, list of the Board of Directors, events calendar and a stake race schedule complete with entry forms that can be downloaded
- http://www.harnessbc.ca/

Indiana Standardbred Association
- Represents the industry in matters involving the state legislature, the IHRC, parimutual racetrack management and in matters directly involving the state's horsemen and women. Includes membership benefits, application, newsletter and resource links.
- http://www.indianaharness.com

Cloverleaf Standardbred Owners Association
- Non-profit organization of owners, trainers, and drivers of harness horses in Maryland and other parties involved in the racing industry. Includes application for membership, photos, directory, meeting minutes, newsletter, related links and contact detai
- http://www.cloverleafsoa.org/

The Ontario Harness Horse Association
- As the world's largest horsemen's organization, the OHHA represents harness horsemen and women in all matters pertaining to the racing industry.
- http://www.ohha.ca/

U.S. Trotting Association (USTA)
- The official national governing body of the standardbred industry in the United States and for tracks in the Maritime provinces of Canada. Race entries and results, driver and trainer licensing requirements and procedures.
- http://www.ustrotting.com

Standardbred Canada
- The official registry and record keeping body for the Canadian standardbred industry. TROT Magazine, news, and entries and results.
- http://www.standardbredcanada.ca/

Maine Harness Racing
- Race dates and locations, off-track betting information, statistics, contests and more from the Maine State Harness Racing Promotion Board (USA).
- http://www.maineharnessracing.com/

International Trotting Association
- Membership list and links to the 1997 and 1999 World Conferences.
- http://www.intertrot.org/

Harness Racing New Zealand
- Information about racing, handicapping, betting, calendar of events and links.
- http://www.hrnz.co.nz/

Harness Racing in Australia
- A comprehensive guide to harness racing in Australia. Racing terms, calendar, news, reports, and tracks.
- http://www.harness.org.au/

Harness Horse Youth Foundation
- The HHYF is a 501(c)(3) organization which focuses on interesting and educating young people about harness racing.
- http://www.hhyf.org/

The Hambletonian Society
- A non-profit organization formed in 1925 to sponsor the race for which it was named, the Hambletonian Stake. Responsibilities today include the management of 134 of harness racing's most important events at sixteen North American tracks.
- http://www.hambletonian.org/

Florida Standardbred Breeders and Owners Association
- A non-profit organization promoting the standardbred horse-breeding industry in Florida, USA.
- http://www.flstandardbreds.com/